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mars1129 [50]
4 years ago
8

I need help ! ASAP !!!!!!

Biology
1 answer:
Andrews [41]4 years ago
7 0

Answer:

-5a-2

Explanation:

the - changes the numbers in the second pair of parinthacies to changes to the opposite signs

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<span>SYMBOL </span>
Ne

<span>ATOMIC NUMBER </span>
10

<span>ATOMIC MASS </span>
20.179

<span>FAMILY </span>
Group 18 (VIIIA) 
Noble gas

<span>PRONUNCIATION </span>
NEE-on

<span>
<span>

</span></span>
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